Huh? No, if you flip coins there is no trend in anything, simply because there is no drift component in the stochastic path of each series of coin flips. Running 1000 series of 10 coin flips you end up with about 50% values above where you started and 50% below. Coin flips are a poor example to describe asset price behavior. Stocks have an up drift component because of value creation that shareholders participate in. Futures prices can exhibit drift depending on the underlying but generally they don't. Fx prices don't at all exhibit drifts